Audio speaker



FIG. 1 is a perspective view of an audio speaker showing the new design:

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left-side elevation view thereof;

FIG. 5 is a right-side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawings represent unclaimed portions of the audio speaker and form no part of the claimed design. 

CLAIM We claim the ornamental design for an audio speaker, as shown and described. 